Home / 2,340.79-3,230.14-1,292.85

Finding the Fourth Proportional to 2,340.79, 3,230.14 and 1,292.85

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Solution

The fourth proportional to 2,340.79, 3,230.14 and 1,292.85 is: 1,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,340.79 : 3,230.14 = 1,292.85 : x
  2. Step 2: Convert to fraction form
    2,340.79/3,230.14 = 1,292.85/x
  3. Step 3: Cross multiply
    2,340.79x = 3,230.14 × 1,292.85
  4. Step 4: Simplify right side
    2,340.79x = 4,176,086.50
  5. Step 5: Solve for x
    x = 4,176,086.50/2,340.79
  6. Step 6: Final answer
    x = 1,784.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.